magento/payment-improvements#1: Add Brazilian Credit Cards Support

 - formatting of pattern to match code style requirements

app/code/Magento/Payment/view/base/web/js/model/credit-card-validation/credit-card-number-validator/credit-card-type.js

@@ -125,7 +125,16 @@ define([
         {
             title: 'Elo',
             type: 'ELO',
-            pattern: '^((509091)|(636368)|(636297)|(504175)|(438935)|(40117[8-9])|(45763[1-2])|(457393)|(431274)|(50990[0-2])|(5099[7-9][0-9])|(50996[4-9])|(509[1-8][0-9][0-9])|(5090(0[0-2]|0[4-9]|1[2-9]|[24589][0-9]|3[1-9]|6[0-46-9]|7[0-24-9]))|(5067(0[0-24-8]|1[0-24-9]|2[014-9]|3[0-379]|4[0-9]|5[0-3]|6[0-5]|7[0-8]))|(6504(0[5-9]|1[0-9]|2[0-9]|3[0-9]))|(6504(8[5-9]|9[0-9])|6505(0[0-9]|1[0-9]|2[0-9]|3[0-8]))|(6505(4[1-9]|5[0-9]|6[0-9]|7[0-9]|8[0-9]|9[0-8]))|(6507(0[0-9]|1[0-8]))|(65072[0-7])|(6509(0[1-9]|1[0-9]|20))|(6516(5[2-9]|6[0-9]|7[0-9]))|(6550(0[0-9]|1[0-9]))|(6550(2[1-9]|3[0-9]|4[0-9]|5[0-8])))\\d*$',
+            pattern: '^((509091)|(636368)|(636297)|(504175)|(438935)|(40117[8-9])|(45763[1-2])|' +
+                '(457393)|(431274)|(50990[0-2])|(5099[7-9][0-9])|(50996[4-9])|(509[1-8][0-9][0-9])|' +
+                '(5090(0[0-2]|0[4-9]|1[2-9]|[24589][0-9]|3[1-9]|6[0-46-9]|7[0-24-9]))|' +
+                '(5067(0[0-24-8]|1[0-24-9]|2[014-9]|3[0-379]|4[0-9]|5[0-3]|6[0-5]|7[0-8]))|' +
+                '(6504(0[5-9]|1[0-9]|2[0-9]|3[0-9]))|' +
+                '(6504(8[5-9]|9[0-9])|6505(0[0-9]|1[0-9]|2[0-9]|3[0-8]))|' +
+                '(6505(4[1-9]|5[0-9]|6[0-9]|7[0-9]|8[0-9]|9[0-8]))|' +
+                '(6507(0[0-9]|1[0-8]))|(65072[0-7])|(6509(0[1-9]|1[0-9]|20))|' +
+                '(6516(5[2-9]|6[0-9]|7[0-9]))|(6550(0[0-9]|1[0-9]))|' +
+                '(6550(2[1-9]|3[0-9]|4[0-9]|5[0-8])))\\d*$',
             gaps: [4, 8, 12],
             lengths: [16],
             code: {